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Retention time and contents of phenolic acid and flavanoid from the RTL-EAF5 fraction.
| Standard | Retention time (min) | EAF5-1 (µg/g) | EAF5-2 (µg/g) | EAF5-3 (µg/g) | EAF5-4 (µg/g) | EAF5-5 (µg/g) |
|---|---|---|---|---|---|---|
| Phenolic acid | ||||||
| Syringic acid | 23.66 | — | — | — | 6.7 ± 0.9 | 27.3 ± 1.4 |
| p-Coumaric acid | 28.78 | — | — | — | — | 95.0 ± 2.5 |
| Flavanoid | ||||||
| Cirsimaritin | 16.91 | — | — | — | — | 805.5 ± 24.8 |
—, not detected. Each value is mean ± SD (n = 3).
